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Fishes
Special Issues
Advances in Feedstuffs for Sustainable and Innovative Aquaculture
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Advances in Feedstuffs for Sustainable and Innovative Aquaculture

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Nutrition and Feeding".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 960

Special Issue Editors

Prof. Dr. Rafael Martínez-García

E-Mail Website
Guest Editor
Laboratorio de Fisiología en Recursos Acuáticos, División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa 86039, Tabasco, México
Interests: nutrition; fish; aquaculture; enzymes; feeds
Prof. Dr. Carlos Alfonso Alvarez-González

E-Mail Website
Guest Editor
Academic Division of Biological Science, Universidad Juárez Autónoma de Tabasco, Villahermosa, Mexico
Interests: nutrition; digestive physiology; transcriptome and gene expression in aquatic organisms
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Experts mention that by 2030, based on global seafood consumption, aquaculture production will be 62%, compared to 38% in fisheries. Aquaculture is one of the industries with the most innovations for food production. New research trends emerge every day to achieve sustainable production, such as aquafeed research to generate innovations and thus achieve sustainable aquaculture. The innovative trends worldwide today in aquaculture nutrition are, for example, the use of probiotics, prebiotics, animal by-product flours, vegetable flour, insect flour, and microalgae oils, among others. This Special Issue aims to gather research (original research articles, perspectives, and reviews) that focuses on the advances in feedstuffs for sustainable and innovative aquaculture.

Prof. Dr. Rafael Martínez-García
Prof. Dr. Carlos Alfonso Alvarez-González
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fishes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aquaculture nutrition
  • fish meal replacement
  • aquafeed additives
  • larvae nutrition
  • prebiotics
  • probiotics
  • fish oil replacement

Published Papers (1 paper)

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Research

19 pages, 11600 KiB  
Article
Optimization of Classical Lipase Activity Assays for Fish Digestive Tract Samples
by Héctor Nolasco-Soria, Carlos Alfonso Alvarez-González, Dariel Tovar-Ramírez, Jorge González-Bacerio, Alberto del Monte-Martínez and Fernando Vega-Villasante
Fishes 2024, 9(7), 261; https://doi.org/10.3390/fishes9070261 - 3 Jul 2024
Viewed by 715
Abstract
Fish possess lipases from embryonic development to adulthood. Lipase activity methods vary and significantly differ in terms of the concentration of the substrate used, bile salt, Ca2+, temperature, pH, and type of lipase units, which limits comparative studies. The three most-used [...] Read more.
Fish possess lipases from embryonic development to adulthood. Lipase activity methods vary and significantly differ in terms of the concentration of the substrate used, bile salt, Ca2+, temperature, pH, and type of lipase units, which limits comparative studies. The three most-used substrates are p-nitrophenyl (p-NP), β-naphthyl (β-N) derivates, and emulsified natural oils. These were selected to be redesigned in this study to measure lipase activity under temperature, pH, ion, and bile salt conditions closer to fish physiology, using the appropriate molar absorption coefficient to calculate the lipase units. Cynoscion parvipinnis (CP), Seriola rivoliana (SR), Centropomus viridis (CV), Elop affinis (EA), and Canthidermis maculate (CM) pyloric caeca-intestine extracts were studied. Sodium taurocholate showed the highest activity for intestinal lipases, and the fatty acid length in the substrates changed the lipase hydrolysis rate. The highest lipase activity was obtained with p-NP butyrate and p-NP caprylate in four fish species. Lipase activity was highly activated with Ca2+ (4–7 mM). The β-N absorption spectrum indicates a plateau between 534 and 554 nm for fish lipases. Salmon oil was identified as the most digestible lipid in the four fish species using the in vitro digestibility assay. The lipase zymogram showed an apparent size of 46.3 kDa for CP, 40.2 kDa for SR, 46.2 kDa for CM, 106.6 kDa for EA, and 58.3, 84.6, and 162.1 kDa for CV. Full article
(This article belongs to the Special Issue Advances in Feedstuffs for Sustainable and Innovative Aquaculture)
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